Seawater desalination pretreatment filter

Abstract

The invention relates to the technical field of filters, and provides a seawater desalination pretreatment filter which comprises a treatment box, and a water inlet pipe is arranged in the middle of one side of the top end of the treatment box; according to the device, when cleaning is needed, a corresponding first electromagnetic valve is closed, a first motor is started, the first motor drives a lead screw to rotate, the lead screw drives the lead screw on the other side to rotate through a first belt, at the moment, the two lead screws rotate at the same time, the lead screws drive a moving cylinder to rotate, and the moving cylinder drives a connecting rotating rod and a limiting sliding block to move; the limiting sliding block drives the filtering boxes to move, at the moment, the two filtering boxes move relatively, the filtering box needing to be cleaned is moved out of the filtering position, the filtering box without filtering is moved to the filtering position, at the moment, the other first electromagnetic valve is opened, and filtering work continues; the removed filter box is cleaned through the internal cleaning assembly and the bottom cleaning assembly, so that the equipment does not need to be stopped for cleaning, and the filtering efficiency before seawater desalination is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and particularly to a pre-treatment filter for seawater desalination. Background Art

[0002] The pre-treatment filter for seawater desalination is one of the key devices in the seawater desalination process. Its main function is to remove impurities such as suspended solids, microorganisms, and organic matter in seawater to protect the subsequent reverse osmosis membrane or other desalination devices from pollution and damage, and ensure the stable operation of the seawater desalination system. The specific process is to transport seawater into the filter through a water delivery device, achieve filtration through a filtration structure, and then the filtered water is discharged from the other side.

[0003] For example, the publication number is CN114653117A. This invention discloses a seawater filter, including: the overall filter, the overall control piston, the outlet pipeline, the inlet pipeline, the lever bracket, the control piston body bracket, the inlet copper pipe, the outlet copper pipe, and the lever; the right side of the overall filter is fixedly connected to the outlet pipeline, and the left side of the overall filter is fixedly connected to the inlet pipeline; one end of the lever is connected to the overall filter, and the other end is slidably connected to the overall control piston; the control piston body bracket is located on the left side of the lever bracket, the lower part of the control piston body bracket is fixedly connected to the inlet pipeline, and the upper part is fixedly connected to the overall control piston. The pressure difference between the inlet and outlet of the filter of this invention device increases as the degree of fouling of the filter element increases. Through a bone hard brush, self-cleaning is realized. When the filter is fouled, it automatically brushes the pollutants attached to the filter mesh, reducing the workload of the crew; the device of this invention is a pure mechanical structure without a circuit, reducing the manufacturing cost. At the same time, there is no short-circuit risk, reducing potential safety hazards.

[0004] In the above-mentioned prior art, during cleaning, the control rod is driven to rotate by a piston structure, and the control rod drives the blades and the brush to rotate, so as to rotate and scrape the filter mesh cylinder for cleaning. However, during this cleaning process, the filtration work of seawater needs to be stopped, and during cleaning, the driving work of the piston structure driving the control rod and the cleaning such as the rotation and scraping of the blades and the brush require a certain amount of time, which will cause the interruption of seawater filtration, thereby slowing down the filtration progress. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that during this cleaning process, the filtration work of seawater needs to be stopped, and during cleaning, the driving work of the piston structure driving the control rod and the cleaning such as the rotation and scraping of the blades and the brush require a certain amount of time, which will cause the interruption of seawater filtration, thereby slowing down the filtration progress.

[0006] To achieve the above object, the present invention adopts the following technical solution: A pre-treatment filter for seawater desalination, comprising a treatment tank. In the middle of one side of the top of the treatment tank, a water inlet pipe is provided. The bottom end of the water inlet pipe is fixedly connected to a first water distribution pipe. The first water distribution pipe penetrates the top of the treatment tank and is fixedly connected to the treatment tank. One end of the first water distribution pipe close to the water inlet pipe is fixedly connected with a first solenoid valve. Inside the treatment tank, a filtering structure is arranged at the bottom end of the first water distribution pipe. The filtering structure includes a driving component and a filtering component. Inside the treatment tank, a bottom cleaning component is arranged at the bottom end of the filtering structure. Inside the treatment tank, an internal cleaning component is arranged on the side far from the filtering structure.

[0007] As a preferred embodiment, the filtering component includes two filtering tanks. A filter plate is arranged at the bottom end inside the filtering tank. One side of the bottom end of the filtering tank is fixedly connected with a support slider. A first sliding groove is formed in the middle of the side where the filtering tanks are close to each other. A limiting slider is slidably connected inside the first sliding groove. When the first solenoid valve on one side is started, seawater enters the corresponding filtering tank through the first water distribution pipe. The filtering tank filters the seawater. When cleaning is required, the corresponding first solenoid valve is closed, and the first motor is started. The first motor drives the lead screw to rotate. The moving cylinder drives the connecting rotating rod and the limiting slider to move. The limiting slider drives the filtering tank to move. At this time, the two filtering tanks move relatively, moving the filtering tank to be cleaned out of the filtering position, and the non-filtering filtering tank moves to the filtering position. At this time, another first solenoid valve is opened to continue the filtering work. The removed filtering tank is cleaned through the internal cleaning component and the bottom cleaning component. Therefore, there is no need to stop the equipment operation for cleaning, improving the efficiency of pre-filtering for seawater desalination.

[0008] As a preferred embodiment, a connecting rotating rod is rotatably connected to the side of the limiting slider away from the filtering tank. One end of the connecting rotating rod away from the limiting slider is fixedly connected with a moving cylinder. One side of the bottom end of the moving cylinder is fixedly connected with a return spring. The bottom end of the return spring is fixedly connected with a fixing plate. The fixing plate is fixedly connected with the filtering tank. After the cleaning is completed, in the next cleaning, another filtering tank is removed, and the cleaned filtering tank moves in again. The moving cylinder moves back, driving the return spring to move. The return spring loses the pulling force of the moving cylinder and starts to rebound. Coupled with the friction between the support slider and the moving sliding groove and the pulling force of the moving cylinder, the three combine to make the filtering tank gradually rotate back and finally reach the filtering position.

[0009] As a preferred embodiment, the driving assembly includes a first motor, which is arranged on the outer wall of the processing box near the water inlet pipe. There are two lead screws arranged on the side of the first motor close to the processing box. The lead screws penetrate through the processing box and are rotatably connected to the processing box. One of the lead screws is in transmission connection with the first motor. The lead screw is in threaded connection with the moving cylinder. One end of the lead screw located outside the processing box is fixedly connected with a first runner. The middle of the first runner is in transmission connection with a first belt. When the first motor is started, the first motor drives the lead screw to rotate, and the lead screw drives the lead screw on the other side to rotate through the first belt. At this time, the two lead screws rotate simultaneously, and the lead screw drives the moving cylinder to rotate.

[0010] As a preferred embodiment, a partition is fixedly connected to the inner bottom end of the processing box near the water inlet pipe. The top end of the partition is fixedly connected with a support frame. Moving chutes are provided on both sides of the support frame and on the two corresponding sides of the processing box and the support frame. The moving chutes are slidably connected with support sliders. A support baffle is fixedly connected to the side of the support frame away from the partition. The support baffle is slidably connected with the filter box. When the filter box moves to the support baffle, the bottom end is resisted by the support baffle, and the moving cylinder continues to move to drive the filter box to deflect with the support slider as the axis. The deflection of the filter box drives the limit slider to slide in the first chute. Among them, the fixing plate pulls the reset spring as the filter box rotates. When the filter box deflects by ninety degrees, it clings to the top end of the support baffle.

[0011] As a preferred embodiment, the bottom cleaning assembly includes a cleaning scraper and a support pipe. The cleaning scraper is fixed on one side of the inner part of the processing box located at the partition, and the top end of the cleaning scraper is slidably connected with the bottom end of the filter box. There are two groups of support pipes. One group of support pipes is fixed on the partition near the support baffle, and the other group of support pipes is fixed on the side of the cleaning scraper away from the partition. A connecting water pipe is fixedly connected to one side of each support pipe. High-pressure nozzles are fixedly arranged at equal intervals at the top end of the support pipe. The high-pressure nozzles on the left flush the bottom end of the filter box after deflection, and the water enters the filter box and carries the garbage to slide down.

[0012] As a preferred embodiment, a second water distribution pipe is fixedly connected to the middle of a group of the support pipes. Second solenoid valves are fixedly connected to both ends of the second water distribution pipe. A water pump is fixedly connected to the middle of the bottom end of the second water distribution pipe. A water delivery pipe is fixedly connected to the bottom end of the water pump. As the filter box moves, it gradually comes into contact with the cleaning scraper, and the cleaning scraper scrapes the bottom end of the filter box to scrape off the scale generated during the filtration of seawater. Then, the water pump is started, and the water pump conveys the water on the side of the partition close to the cylinder to the water delivery pipe through the suction pipe. Then, the second solenoid valve close to the side where the filter box needs to be cleaned is started, and the water enters the support pipe on the corresponding side through the second water distribution pipe and is finally sprayed out through the high-pressure nozzle. The bottom of the filter box is rinsed with the water sprayed under high pressure, and the cleaning scraper can also be rinsed to prevent scale from adhering to the cleaning scraper.

[0013] As a preferred embodiment, a water pump is fixedly connected to the bottom end of the water delivery pipe. Fixed mounting plates are fixedly connected to both sides of the water pump. The top end of the fixed mounting plate is fixedly connected to the support pipe. A suction pipe is fixedly connected to the bottom end of the water pump. A filter head is fixedly connected to the bottom end of the suction pipe.

[0014] As a preferred embodiment, the internal cleaning assembly includes a cylinder. The cylinder is divided into two groups and fixed on the side of the processing box away from the partition. Each top cylinder penetrates the processing box. A rotating shaft is fixedly connected to the end of the cylinder outside the processing box. A second motor is drivingly connected to the end of the rotating shaft away from the cylinder. The cylinder and the second motor are started. The cylinder pushes the cleaning roller to move the cleaning belt and the brush into the interior of the filter box. The second motor drives the rotating shaft to rotate, the rotating shaft drives the second motor to rotate, and the second motor drives one of the cylinders to rotate.

[0015] As a preferred embodiment, a cleaning roller is fixedly connected to the end of the cylinder away from the second motor. A cleaning belt is drivingly connected to the outer wall of the cleaning roller. A brush is fixedly connected to the end of the cleaning roller away from the cylinder. The cleaning belt and the brush are slidably connected to the interior of the filter box. A second runner is fixedly connected to the side of the cylinder where the cleaning roller is located. A second belt is drivingly connected to the middle of the second runner. The cylinder drives the other cylinder to rotate through the cooperation of the second runner and the second belt. At this time, the two cleaning rollers drive the cleaning belt to rotate simultaneously, which can increase the cleaning strength of the cleaning belt and the brush. During the cleaning process, the water sprayed out by the high-pressure nozzle on the side close to the cylinder enters the interior of the filter box through the filter plate, making the cleaning belt and the brush cleaner.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, when the first solenoid valve on one side is activated, seawater enters the corresponding filtration tank through the first sub-water pipe, and the filtration tank filters the seawater. When cleaning is required, the corresponding first solenoid valve is closed, and the first motor is activated. The first motor drives the lead screw to rotate, and the lead screw drives the lead screw on the other side to rotate through the first belt. At this time, the two lead screws rotate simultaneously. The lead screw drives the moving cylinder to rotate, and the moving cylinder drives the connecting rotating rod and the limiting slider to move. The limiting slider drives the filtration tank to move. At this time, the two filtration tanks move relative to each other, moving the filtration tank to be cleaned out of the filtration position, and the filtration tank that has not been filtered moves to the filtration position. At this time, another first solenoid valve is opened to continue the filtration work, and the removed filtration tank is cleaned through the internal cleaning component and the bottom cleaning component. Therefore, there is no need to stop the equipment operation for cleaning, improving the filtration efficiency before seawater desalination.

[0018] 2. In the present invention, as the filtration tank moves out, it gradually comes into contact with the cleaning scraper, and the cleaning scraper scrapes the bottom end of the filtration tank, scraping off the scale generated during seawater filtration. Then, the water pump is activated. The water pump transports the water on the side of the partition plate close to the cylinder to the water delivery pipe through the water suction pipe. Then, the second solenoid valve on the side close to the filtration tank to be cleaned is activated, and the water enters the corresponding support pipe on one side through the second sub-water pipe and is finally sprayed out through the high-pressure nozzle. The water sprayed through high pressure flushes the bottom of the filtration tank and can also flush the cleaning scraper to prevent scale from adhering to the cleaning scraper.

[0019] 3. In the present invention, when the filtration tank moves to the support baffle, the bottom end is resisted by the support baffle, and the moving cylinder continues to move, driving the filtration tank to deflect with the support slider as the axis. The deflection of the filtration tank drives the limiting slider to slide in the first chute. Among them, the fixing plate pulls the reset spring as the filtration tank rotates. When the filtration tank deflects by ninety degrees, it clings to the top of the support baffle, and the high-pressure nozzle on the side close to the cylinder continuously flushes the bottom of the filtration tank. The water enters the filtration tank and the garbage slides down. The cylinder and the second motor are activated. The cylinder pushes the cleaning roller to drive the cleaning belt and the brush into the interior of the filtration tank. The second motor drives the rotating shaft to rotate, and the rotating shaft drives the second motor to rotate. The second motor drives one cylinder to rotate, and the cylinder drives the other cylinder to rotate through the cooperation of the second runner and the second belt. At this time, the two cleaning rollers drive the cleaning belt to rotate simultaneously, which can increase the cleaning strength of the cleaning belt and the brush. During the cleaning process, the water sprayed by the high-pressure nozzle on the side close to the cylinder enters the interior of the filtration tank through the filter plate, making the cleaning of the cleaning belt and the brush cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a pre-treatment filter for seawater desalination provided by the present invention;

[0021] Figure 2 is a schematic cross-sectional structural diagram of a pre-treatment filter for seawater desalination provided by the present invention;

[0022] Figure 3 Schematic diagram of the filtering structure of a pre-treatment filter for seawater desalination provided by the present invention;

[0023] Figure 4 Schematic diagram of the filtering component structure of a pre-treatment filter for seawater desalination provided by the present invention;

[0024] Figure 5 Schematic diagram of the left side structure of the internal cleaning component of a pre-treatment filter for seawater desalination provided by the present invention;

[0025] Figure 6 Schematic diagram of the right side structure of the internal cleaning component of a pre-treatment filter for seawater desalination provided by the present invention;

[0026] Figure 7 Schematic diagram of the moving chute structure of a pre-treatment filter for seawater desalination provided by the present invention;

[0027] Figure 8 Schematic diagram of the bottom cleaning component structure of a pre-treatment filter for seawater desalination provided by the present invention;

[0028] Legend description:

[0029] 1. Treatment tank; 11. Water inlet pipe; 12. First water distribution pipe; 13. First solenoid valve; 14. Partition board; 15. Support frame; 151. Moving chute; 16. Support baffle; 21. First motor; 211. First runner; 212. First belt; 213. Lead screw; 22. Filter tank; 221. Filter plate; 222. Support slider; 223. First chute; 224. Limit slider; 225. Connecting rotating rod; 226. Moving cylinder; 227. Return spring; 228. Fixed plate; 31. Cylinder; 32. Rotating shaft; 33. Second motor; 34. Second runner; 35. Second belt; 36. Cleaning roller; 37. Cleaning belt; 38. Brush; 41. Cleaning scraper; 42. Support pipe; 43. High-pressure spray head; 44. Second water distribution pipe; 45. Second solenoid valve; 46. Water delivery pipe; 47. Water pump; 48. Fixed frame plate; 49. Suction pipe; 410. Filter head; 411. Connecting water pipe. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer toFigure 1 - Figure 8 The present invention provides a technical solution: a pretreatment filter for seawater desalination, including a treatment tank 1. In the middle of one side of the top of the treatment tank 1, a water inlet pipe 11 is provided. The bottom end of the water inlet pipe 11 is fixedly connected to a first water distribution pipe 12. The first water distribution pipe 12 penetrates through the top of the treatment tank 1 and is fixedly connected to the treatment tank 1. One end of the first water distribution pipe 12 close to the water inlet pipe 11 is fixedly connected to a first solenoid valve 13. Inside the treatment tank 1, a filtering structure is provided at the bottom end of the first water distribution pipe 12. The filtering structure includes a driving component and a filtering component. Inside the treatment tank 1, a bottom cleaning component is provided at the bottom end of the filtering structure. An internal cleaning component is provided on one side of the treatment tank 1 away from the filtering structure.

[0032] As Figure 1 - Figure 8 shown, the filtering component includes a filtering box 22, and the number of the filtering boxes 22 is two. A filter plate 221 is provided at the bottom end inside the filtering box 22. One side of the bottom end of the filtering box 22 is fixedly connected to a support slider 222. A first sliding groove 223 is opened in the middle of the side where the filtering boxes 22 are close to each other. A limiting slider 224 is slidably connected inside the first sliding groove 223. One side of the limiting slider 224 away from the filtering box 22 is rotatably connected to a connecting rotating rod 225. One end of the connecting rotating rod 225 away from the limiting slider 224 is fixedly connected to a moving cylinder 226. One side of the bottom end of the moving cylinder 226 is fixedly connected to a return spring 227. The bottom end of the return spring 227 is fixedly connected to a fixing plate 228. The fixing plate 228 is fixedly connected to the filtering box 22. The driving component includes a first motor 21. The first motor 21 is arranged on the outer wall of the treatment tank 1 close to the water inlet pipe 11. Two lead screws 213 are provided on the side of the first motor 21 close to the treatment tank 1. The lead screws 213 penetrate through the treatment tank 1 and are rotatably connected to the treatment tank 1. One lead screw 213 is in transmission connection with the first motor 21. The lead screw 213 is in threaded connection with the moving cylinder 226. One end of the lead screw 213 located outside the treatment tank 1 is fixedly connected to a first runner 211. The middle of the first runner 211 is in transmission connection with a first belt 212. On one side of the bottom end inside the treatment tank 1 close to the water inlet pipe 11, a partition plate 14 is fixedly connected. The top end of the partition plate 14 is fixedly connected to a support frame 15. Moving sliding grooves 151 are opened on both sides of the support frame 15 and on both sides of the treatment tank 1 corresponding to the support frame 15. The moving sliding grooves 151 are slidably connected to the support sliders 222. One side of the support frame 15 away from the partition plate 14 is fixedly connected to a support baffle 16. The support baffle 16 is slidably connected to the filtering box 22.

[0033] In this embodiment, the first solenoid valve 13 on one side is activated, and seawater enters the corresponding filter tank 22 through the first water distribution pipe 12. The filter tank 22 filters the seawater, and the filtered seawater enters the space on the side of the partition 14 away from the cylinder 31. When cleaning is required, the corresponding first solenoid valve 13 is closed, and the first motor 21 is activated. The first motor 21 drives the lead screw 213 to rotate. The lead screw 213 drives the lead screw 213 on the other side to rotate through the first belt 212. At this time, the two lead screws 213 rotate simultaneously. The lead screw 213 drives the moving cylinder 226 to rotate, and the moving cylinder 226 drives the connecting rotating rod 225 and the limit slider 224 to move. The limit slider 224 drives the filter tank 22 to move. At this time, the two filter tanks 22 move relative to each other, moving the filter tank 22 to be cleaned out of the filtering position, and the non-filtered filter tank 22 moves to the filtering position. At this time, another first solenoid valve 13 is opened to continue the filtering work, and the removed filter tank 22 is cleaned through the internal cleaning component and the bottom cleaning component. Therefore, there is no need to stop the equipment operation for cleaning, improving the efficiency of filtering before seawater desalination.

[0034] As Figure 1 - Figure 8 As shown, the bottom cleaning component includes a cleaning scraper 41 and a support pipe 42. The cleaning scraper 41 is fixed inside the processing tank 1 on one side of the partition 14, and the top of the cleaning scraper 41 is slidably connected to the bottom of the filter tank 22. There are two groups of support pipes 42. One group of support pipes 42 is fixed near the support baffle 16 on the partition 14, and the other group of support pipes 42 is fixed on the side of the cleaning scraper 41 away from the partition 14. A connecting water pipe 411 is fixedly connected to one side of each support pipe 42. High-pressure nozzles 43 are fixedly connected to the top of the support pipes 42 at equal intervals. A second water distribution pipe 44 is fixedly connected to the middle of one group of support pipes 42. Second solenoid valves 45 are fixedly connected to both ends of the second water distribution pipe 44. A water pump 47 is fixedly connected to the middle of the bottom end of the second water distribution pipe 44. A water delivery pipe 46 is fixedly connected to the bottom end of the water pump 47. A water pump 47 is fixedly connected to the bottom end of the water delivery pipe 46. Fixed support plates 48 are fixedly connected to both sides of the water pump 47. The top of the fixed support plates 48 is fixedly connected to the support pipe 42. A water suction pipe 49 is fixedly connected to the bottom end of the water pump 47. A filter head 410 is fixedly connected to the bottom end of the water suction pipe 49.

[0035] In this embodiment, the filter box 22 moves out and gradually comes into contact with the cleaning scraper 41. The cleaning scraper 41 scrapes the bottom end of the filter box 22 to scrape off the scale generated during the filtration of seawater. Then, the water pump 47 is started. The water pump 47 transports the water on the side of the partition 14 close to the cylinder 31 to the water delivery pipe 46 through the water suction pipe 49. Then, the second solenoid valve 45 close to the side where the filter box 22 needs to be cleaned is started. The water enters the support pipe 42 on the corresponding side through the second water distribution pipe 44 and is finally sprayed out through the high-pressure nozzle 43. The bottom of the filter box 22 is rinsed with the water sprayed under high pressure, and the cleaning scraper 41 can also be rinsed to prevent scale from adhering to the cleaning scraper 41.

[0036] As Figure 1 - Figure 8 As shown, the internal cleaning component includes a cylinder 31. The cylinder 31 is divided into two groups and fixed on the side of the treatment box 1 away from the partition 14. The top of each group of cylinders 31 penetrates the treatment box 1. One end of the cylinder 31 located outside the treatment box 1 is fixedly connected to a rotating shaft 32. The end of the rotating shaft 32 away from the cylinder 31 is drivingly connected to a second motor 33. One end of the cylinder 31 away from the second motor 33 is fixedly connected to a cleaning roller 36. The outer wall of the cleaning roller 36 is drivingly connected to a cleaning belt 37. One end of the cleaning roller 36 away from the cylinder 31 is fixedly connected to a brush 38. The cleaning belt 37 and the brush 38 are slidably connected to the inside of the filter box 22. One side of the cylinder 31 where the cleaning roller 36 is located is fixedly connected to a second runner 34. The middle of the second runner 34 is drivingly connected to a second belt 35.

[0037] In this embodiment, when the filter box 22 continues to move to the support baffle 16, the bottom end is resisted by the support baffle 16, and the moving cylinder 226 continues to move to drive the filter box 22 to deflect around the support slider 222 as the axis. The deflection of the filter box 22 drives the limit slider 224 to slide in the first chute 223. Among them, the fixed plate 228 pulls the return spring 227 as the filter box 22 rotates. When the filter box 22 deflects by ninety degrees, it clings to the top of the support baffle 16, and the high-pressure nozzle 43 on the side close to the cylinder 31 continuously flushes the bottom of the filter box 22. The water enters the filter box 22 and carries the garbage to slide down. The cylinder 31 and the second motor 33 are started. The cylinder 31 pushes the cleaning roller 36 to move the cleaning belt 37 and the brush 38 into the interior of the filter box 22. The second motor 33 is started. The second motor 33 drives the rotating shaft 32 to rotate. The rotating shaft 32 drives the second motor 33 to rotate. The second motor 33 drives a cylinder 31 to rotate. The cylinder 31 drives another cylinder 31 to rotate through the cooperation of the second runner 34 and the second belt 35. At this time, the two cleaning rollers 36 drive the cleaning belt 37 to rotate simultaneously, which can increase the cleaning strength of the cleaning belt 37 and the brush 38. During the cleaning process, the water sprayed by the high-pressure nozzle 43 on the side close to the cylinder 31 enters the interior of the filter box 22 through the filter plate 221, making the cleaning belt 37 and the brush 38 cleaner. After the cleaning is completed, in the next cleaning, another filter box 22 is moved out, and the cleaned filter box 22 is moved in again. The moving cylinder 226 moves back to drive the return spring 227 to move. The return spring 227 loses the pulling force of the moving cylinder 226 and starts to rebound. Coupled with the friction between the support slider 222 and the moving chute 151 and the pulling force of the moving cylinder 226, the three combine to make the filter box 22 gradually rotate back and finally reach the filtering position.

[0038] Working principle: First, start the first solenoid valve 13 on one side, and seawater enters the corresponding filter tank 22 through the first water distribution pipe 12. The filter tank 22 filters the seawater, and the filtered seawater enters the space on the side of the partition 14 away from the cylinder 31. When cleaning is required, close the corresponding first solenoid valve 13 and start the first motor 21. The first motor 21 drives the lead screw 213 to rotate, and the lead screw 213 drives the lead screw 213 on the other side to rotate through the first belt 212. At this time, the two lead screws 213 rotate simultaneously. The lead screw 213 drives the moving cylinder 226 to rotate, and the moving cylinder 226 drives the connecting rotating rod 225 and the limit slider 224 to move. The limit slider 224 drives the filter tank 22 to move. At this time, the two filter tanks 22 move relative to each other, moving the filter tank 22 that needs to be cleaned out of the filtering position, and the non-filtering filter tank 22 moves to the filtering position. At this time, open another first solenoid valve 13 and continue the filtering work. The removed filter tank 22 is cleaned through the internal cleaning component and the bottom cleaning component. Therefore, there is no need to stop the equipment operation for cleaning, improving the efficiency of filtering before seawater desalination. The filter tank 22 moves out and gradually contacts the cleaning scraper 41. The cleaning scraper 41 scrapes the bottom end of the filter tank 22, scraping off the scale generated during seawater filtration. Then start the water pump 47. The water pump 47 transports the water on the side of the partition 14 close to the cylinder 31 to the water delivery pipe 46 through the water suction pipe 49. Then start the second solenoid valve 45 on the side close to the filter tank 22 that needs to be cleaned. The water enters the corresponding support pipe 42 through the second water distribution pipe 44 and is finally sprayed out through the high-pressure nozzle 43. The water sprayed through high pressure flushes the bottom of the filter tank 22 and can also flush the cleaning scraper 41 to prevent scale from adhering to the cleaning scraper 41. When the filter tank 22 continues to move to the support baffle 16, the bottom end is resisted by the support baffle 16, and the moving cylinder 226 continues to move, driving the filter tank 22 to deflect around the support slider 222 as the axis. The deflection of the filter tank 22 drives the limit slider 224 to slide in the first chute 223. Among them, the fixing plate 228 pulls the return spring 227 as the filter tank 22 rotates. When the filter tank 22 deflects by ninety degrees, it closely adheres to the top of the support baffle 16, and the high-pressure nozzle 43 on the side close to the cylinder 31 continuously flushes the bottom of the filter tank 22. The water enters the filter tank 22 and the garbage slides down. Start the cylinder 31 and the second motor 33. The cylinder 31 pushes the cleaning roller 36 to move the cleaning belt 37 and the brush 38 into the interior of the filter tank 22. Start the second motor 33. The second motor 33 drives the rotating shaft 32 to rotate. The rotating shaft 32 drives the second motor 33 to rotate. The second motor 33 drives one cylinder 31 to rotate. The cylinder 31 drives the other cylinder 31 to rotate through the cooperation of the second runner 34 and the second belt 35. At this time, the two cleaning rollers 36 drive the cleaning belt 37 to rotate simultaneously, which can increase the cleaning strength of the cleaning belt 37 and the brush 38. During the cleaning process, the water sprayed by the high-pressure nozzle 43 on the side close to the cylinder 31 enters the interior of the filter tank 22 through the filter plate 221.The cleaning belt 37 and the brush 38 can clean more thoroughly. After the cleaning is completed, in the next cleaning, another filter box 22 is moved out, and the filter box 22 that has completed cleaning is moved in again. The moving cylinder 226 moves back, driving the return spring 227 to move. The return spring 227 loses the pulling force of the moving cylinder 226 and starts to rebound. Coupled with the friction between the supporting slider 222 and the moving chute 151 and the pulling force of the moving cylinder 226, the three combine to make the filter box 22 gradually rotate and finally reach the filtering position.

[0039] The above are only the preferred embodiments of the present invention and do not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A seawater desalination pre-treatment filter, comprising a treatment box (1), characterized in that: A water inlet pipe (11) is provided in the middle of one side of the top end of the treatment box (1); the bottom end of the water inlet pipe (11) is fixedly connected to a first water distribution pipe (12); the first water distribution pipe (12) passes through the top end of the treatment box (1) and is fixedly connected to the treatment box (1); one end of the first water distribution pipe (12) close to the water inlet pipe (11) is fixedly connected to a first solenoid valve (13); a filtering structure is provided at the bottom end of the first water distribution pipe (12) inside the treatment box (1); the filtering structure comprises a driving component and a filtering component; a bottom cleaning component is provided at the bottom end of the filtering structure inside the treatment box (1); and an internal cleaning component is provided on a side of the treatment box (1) away from the filtering structure.

2. A seawater desalination pretreatment filter according to claim 1, characterized in that: The filter assembly comprises a filter box (22), and the number of the filter boxes (22) is two. A filter plate (221) is arranged at the bottom end of the filter box (22), a support slider (222) is fixedly connected to one side of the bottom end of the filter box (22), a first slide groove (223) is opened in the middle of one side of the filter box (22) close to each other, and a limiting slider (224) is slidably connected inside the first slide groove (223).

3. A seawater desalination pretreatment filter according to claim 2, characterized in that: The side of the limiting slider (224) away from the filter box (22) is rotatably connected to a connecting rod (225), and the end of the connecting rod (225) away from the limiting slider (224) is fixedly connected to a moving cylinder (226), and one side of the bottom end of the moving cylinder (226) is fixedly connected to a return spring (227), and the bottom end of the return spring (227) is fixedly connected to a fixed plate (228), and the fixed plate (228) is fixedly connected to the filter box (22).

4. A seawater desalination pretreatment filter according to claim 3, characterized in that: The driving assembly comprises a first motor (21), the first motor (21) being arranged on the outer wall of the treatment box (1) on a side close to the water inlet pipe (11), two screw rods (213) being arranged on the side of the first motor (21) close to the treatment box (1), the screw rods (213) passing through the treatment box (1) and being rotatably connected to the treatment box (1), one of the screw rods (213) being transmission-connected to the first motor (21), the screw rod (213) being threadedly connected to the moving cylinder (226), one end of the screw rod (213) located outside the treatment box (1) being fixedly connected to a first rotating wheel (211), and a middle part of the first rotating wheel (211) being transmission-connected to a first belt (212).

5. A seawater desalination pretreatment filter according to claim 4, characterized in that: A partition (14) is fixedly connected to the side of the bottom of the processing box (1) close to the water inlet pipe (11), and a support frame (15) is fixedly connected to the top of the partition (14). Both sides of the support frame (15) and the two sides corresponding to the processing box (1) and the support frame (15) are provided with movable slide grooves (151), and the movable slide grooves (151) are slidably connected to the support slider (222). A support baffle (16) is fixedly connected to the side of the support frame (15) away from the partition (14), and the support baffle (16) is slidably connected to the filter box (22).

6. The seawater desalination pretreatment filter according to claim 1, characterized in that: The bottom cleaning assembly comprises a cleaning scraper (41) and a support pipe (42); the cleaning scraper (41) is fixed inside the treatment box (1) on one side of the partition (14), and the top end of the cleaning scraper (41) is slidably connected to the bottom end of the filter box (22); the support pipe (42) is divided into two groups, one group of the support pipes (42) is fixed on the partition (14) close to the support baffle (16), and the other group of the support pipes (42) is fixed on the side of the cleaning scraper (41) away from the partition (14); one side of the support pipe (42) is fixedly connected to a connecting water pipe (411), and the top end of the support pipe (42) is evenly spaced and fixedly connected to high-pressure nozzles (43).

7. A seawater desalination pretreatment filter according to claim 6, characterized in that: A second water distribution pipe (44) is fixedly connected to the middle of a group of support pipes (42), and second solenoid valves (45) are fixedly connected to both ends of the second water distribution pipe (44). A water pump (47) is fixedly connected to the middle of the bottom end of the second water distribution pipe (44), and a water delivery pipe (46) is fixedly connected to the bottom end of the water pump (47).

8. A seawater desalination pretreatment filter according to claim 7, characterized in that: The bottom end of the water delivery pipe (46) is fixedly connected to a water pump (47), both sides of the water pump (47) are fixedly connected to fixed frames (48), the top end of the fixed frames (48) is fixedly connected to the support pipe (42), the bottom end of the water pump (47) is fixedly connected to a water suction pipe (49), and the bottom end of the water suction pipe (49) is fixedly connected to a filter head (410).

9. The seawater desalination pretreatment filter according to claim 1, characterized in that: The internal cleaning assembly comprises a cylinder (31), and the cylinder (31) is divided into two groups and fixed on a side of the inside of the processing box (1) away from the partition (14). The cylinder (31) at the top of each group passes through the processing box (1), and one end of the cylinder (31) located outside the processing box (1) is fixedly connected to a rotating shaft (32), and the other end of the rotating shaft (32) away from the cylinder (31) is drivingly connected to a second motor (33).

10. A seawater desalination pretreatment filter according to claim 9, characterized in that: The end of the cylinder (31) away from the second motor (33) is fixedly connected to a cleaning roller (36), the outer wall of the cleaning roller (36) is transmission-connected to a cleaning belt (37), the end of the cleaning roller (36) away from the cylinder (31) is fixedly connected to a brush (38), the cleaning belt (37) and the brush (38) are slidably connected to the inside of the filter box (22), the cylinder (31) is fixedly connected to a second rotating wheel (34) on one side of the cleaning roller (36), and the middle part of the second rotating wheel (34) is transmission-connected to a second belt (35).

Images